Michigan's most prolific GOP boosters – the DeVos family – has vowed to end support for Grand Rapids Congressman and Libertarian-leaning Republican Justin Amash following the lawmaker's support to impeach President Donald Trump. Amash, who is considering a presidential run with the Libertarian Party, is serving his fifth term in the state's third House District. On May 18, Amash, in a series of tweets, said he had read the Mueller report and claimed it "reveals that President Trump engaged in specific actions and a pattern of behavior that meet the threshold for impeachment." The DeVos family in response decided to cut ties with Amash, saying through a spokesman that it hadn't made any political contributions to Amash this cycle and doesn't plan to, despite hefty contributions in the past. A spokesman further said that family members have expressed concerns about what they say is a lack of representation in Amash's congressional district, according to media reports. Amash, who has maintained a conservative voting record while still tending to stray from support for Trump, has continued his criticism of the President. "I swore an oath to support and defend the Constitution, not an oath to do the bidding of one man or one political party," he tweeted on June 1.